MIPS: Port function call type-feedback cells to x64 and ARM.

src/mips/code-stubs-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 5384 matching lines @@
   // function stub.
   if (ReceiverMightBeImplicit()) {
     Label call;
     // Get the receiver from the stack.
     // function, receiver [, arguments]
     __ lw(t0, MemOperand(sp, argc_ * kPointerSize));
     // Call as function is indicated with the hole.
     __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
     __ Branch(&call, ne, t0, Operand(at));
     // Patch the receiver on the stack with the global receiver object.
-    __ lw(a2, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
-    __ lw(a2, FieldMemOperand(a2, GlobalObject::kGlobalReceiverOffset));
-    __ sw(a2, MemOperand(sp, argc_ * kPointerSize));
+    __ lw(a3, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+    __ lw(a3, FieldMemOperand(a3, GlobalObject::kGlobalReceiverOffset));
+    __ sw(a3, MemOperand(sp, argc_ * kPointerSize));
     __ bind(&call);
   }
 
   // Check that the function is really a JavaScript function.
   // a1: pushed function (to be verified)
   __ JumpIfSmi(a1, &non_function);
   // Get the map of the function object.
-  __ GetObjectType(a1, a2, a2);
-  __ Branch(&slow, ne, a2, Operand(JS_FUNCTION_TYPE));
+  __ GetObjectType(a1, a3, a3);
+  __ Branch(&slow, ne, a3, Operand(JS_FUNCTION_TYPE));
+
+  if (RecordCallTarget()) {
+    GenerateRecordCallTarget(masm);
+  }
 
   // Fast-case: Invoke the function now.
   // a1: pushed function
   ParameterCount actual(argc_);
 
   if (ReceiverMightBeImplicit()) {
     Label call_as_function;
     __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
     __ Branch(&call_as_function, eq, t0, Operand(at));
     __ InvokeFunction(a1,
                       actual,
                       JUMP_FUNCTION,
                       NullCallWrapper(),
                       CALL_AS_METHOD);
     __ bind(&call_as_function);
   }
   __ InvokeFunction(a1,
                     actual,
                     JUMP_FUNCTION,
                     NullCallWrapper(),
                     CALL_AS_FUNCTION);
 
   // Slow-case: Non-function called.
   __ bind(&slow);
+  if (RecordCallTarget()) {
+    // If there is a call target cache, mark it megamorphic in the
+    // non-function case.  MegamorphicSentinel is an immortal immovable
+    // object (undefined) so no write barrier is needed.
+    ASSERT_EQ(*TypeFeedbackCells::MegamorphicSentinel(masm->isolate()),
+              masm->isolate()->heap()->undefined_value());
+    __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
+    __ sw(at, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset));
+  }
   // Check for function proxy.
-  __ Branch(&non_function, ne, a2, Operand(JS_FUNCTION_PROXY_TYPE));
+  __ Branch(&non_function, ne, a3, Operand(JS_FUNCTION_PROXY_TYPE));
   __ push(a1);  // Put proxy as additional argument.
   __ li(a0, Operand(argc_ + 1, RelocInfo::NONE));
   __ li(a2, Operand(0, RelocInfo::NONE));
   __ GetBuiltinEntry(a3, Builtins::CALL_FUNCTION_PROXY);
   __ SetCallKind(t1, CALL_AS_METHOD);
   {
     Handle<Code> adaptor =
       masm->isolate()->builtins()->ArgumentsAdaptorTrampoline();
     __ Jump(adaptor, RelocInfo::CODE_TARGET);
   }
@@ skipping 2210 matching lines @@
   __ Ret(USE_DELAY_SLOT);
   __ mov(v0, a0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS